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10 Minute Awakening

by Alisa Princy (2019-12-16)

Our eyes pick up 10 Minute Awakening Review the "visible light" spectrum (frequency range). Each wavelength (frequency range) appears to us on our internal screen as a color or shade of a color. In order of increasing frequency they are red, orange, yellow, green, blue, and violet. There are also other light that we can not see with our eyes, but they do exist. Human ears can pick up sounds between 16 and 20,000 Hz. We hear these longitudinal mechanical wave frequencies as sounds when our ears perceive them and convert them back into electrical signals which are sent to the brain for processing. Once the brain processes these electrical pulses it plays a sound which we 'hear'. There are many sounds within the 16-20,000 Hz frequency range but there are many sounds which our ears do not pick up. The sounds are still there, but we just cannot perceive them with our 'equipment'. Bats can hear sounds up to 100,000 Hz which no humans can hear without the aid of technology. There are also low frequency sounds that can not be heard by human ears as well. This doesn't mean those frequencies aren't there, we just can't perceive them so we don't usually notice them unless we are using an instrument designed to convert those frequencies into something that we can perceive. You can't hear the radio station until you set your radio to pick up the right set of frequencies over which the radio station is broadcasting their programs, but the signal is still there if the radio is not turned on, you just don't notice it and go about your business.